Perhaps you should try some spelling variations:
"dung lieu phap slippers" » "dung hieu phap slippers", "dung tieu phap slippers", "dung viet phap slippers", "dung bien phap slippers", "dung hien phap slippers", "dung lieu phap slippery", "dung lieu phap grippers"
"dung java java snippets" » "dung va java snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("dung lieu phap slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung lieu phap slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung lieu phap slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung lieu phap slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.